import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import User from '../components/user/User.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Report from '../components/report/Report.vue'
Vue.use(VueRouter)

  const routes = [
    {
      path:'/',
      redirect:'/login'
    },
    {
      path: '/login',
      component: Login
    },
    {
      path: '/home',
      component: Home,
      redirect:'/welcome',
      children:[
        {path:'/welcome',component:Welcome},
        {path:'/users',component:User},
        {path:'/rights',component:Rights},
        {path:'/roles',component:Roles},
        {path:'/reports',component:Report}
      ]
    }
]

const router = new VueRouter({
  routes,
  mode:'history'
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //to将要访问的路进
  //from 代表从哪个路径跳转而来
  //next 是一个函数，表示放行 next('/login')强制跳转
  if(to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})
export default router
